Yeah I went out and bought the Huawei E5573 modem which was on special at Coles and the post office. It was Optus-branded but thankfully unlocked so I put a $2 Telstra SIM into it which worked automagically and just downloaded all day and night.

I got pretty shit speeds with it despite being a 700mhz (4GX) device. I think Telstra must throttle torrents or something.